The method to recover dead Yahoo account on PC is quite simple and short. It is almost like a normal login process. The point to remember is that one can regain access to a dead Yahoo! account within 90 days after deleting a Yahoo mail account.
If the period of deletion of your Yahoo account does not exceed 90 days, you should consider the steps mentioned below:
Open the Yahoo login window.
Enter your old Yahoo! email address and click Next.
Now enter your password.
Insert the CAPTCHA to check if Yahoo asks for it.
Yahoo may ask you to enter your yahoo account recovery phone number or an alternate email address to confirm your identity.
If your Yahoo account still exists on the Yahoo server, a pop-up window will appear showing you a message "Reactivate your Yahoo! account." Click on the Reactivate tab.
Once you recover your deactivated Yahoo! mail account, change your Yahoo password to stay safe from mail hacking.
If your account does not exist on the Yahoo server, you will receive a message that your Yahoo account is deactivated and cannot be recovered.
The same process you can try to recover the deactivated Yahoo account on the phone.
If your Yahoo! account has been dead for more than 365 days, you must call to check with Yahoo customer service to recover your deactivated Yahoo!
The Yahoo representative can bring your dead Yahoo account to life in 24 hours.